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Search results

  1. W

    4l80e help

    I have replaced that too
  2. W

    4l80e help

    Gas 5.7 4x4
  3. W

    4l80e help

    So should I change the prom and see what the heck happens I mean that's the only thing I could see it could be causing the havoc on the transmission no other codes come up
  4. W

    4l80e help

    Well I reset my computer drovp my vehicle around and finally said just one code out of the whole system it shows 85 I think that is the prom error code what is that this thanks
  5. W

    4l80e help

    There was some oil in there once before I sprayed it out with the electrical cleaner
  6. W

    4l80e help

    I've been looking through all the electrical and I replaced all the sensors. checked the throttle position sensor it seems to be getting all the right volts it needs in there I'm just don't know what to do with it like I said it runs and drives fine down the road as soon as I shut the ignition...
  7. W

    4l80e help

    1991 chevy suburban transmission shift hard 1st and 2nd no lock up in overdrive let I sit for 30 min drive again everything work good can drive for hours until I shut if off and start it up and and will act back up again. And this transmission was rebuilt 1500 miles ago.
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